/Engine/Source/Runtime/Core/Public/Misc/ConfigCacheIni.h
Load an ini file directly into anFConfigFilefrom the specified config folders, optionally writing to disk. The passed in .ini name can be a "base" (Engine, Game) which will be modified by platform and/or commandline override, or it can be a full ini filename (ie WrangleContent) loaded from the Source config directory
true if the ini file was loaded successfully
static bool LoadExternalIniFile ( [FConfigFile](API\Runtime\Core\Misc\FConfigFile) & ConfigFile, const TCHAR * IniName, const TCHAR * EngineConfigDir, const TCHAR * SourceConfigDir, bool bIsBaseIniName, const TCHAR * Platform, bool bForceReload, bool bWriteDestIni, bool bAllowGeneratedIniWhenCooked, const TCHAR * GeneratedConfigDir )